Automatic wagon-brake



(N0 Modl.)

J. F. PARKER & O. D. ARNN.

v AUTOMATIC WAGON BRAKE. No. 276,067. Patented Apr. 17,1883.

WITNESSES IWVE/{ZOEV I 6077;682:2 00? en",

orney N. Penn's. Pholo-L'Hhngnphor, Walhingwn. n. c.

UNITED STATES PATENT OFFICE.

JAMES F. PARKER AND CRISPIN D. ARNN, OF RALSTON, TENNESSEE.

AUTOMATIC WAGON-BRAKE.

SPEGIFIGATION forming part of Letters Patent No. 276,067, dated April17, 1883.

Application filed February 13, 1983.

act description of the same, reference being had' to the annexeddrawings, making a partof this specification, and to the letters andfigures of reference marked thereon.

Figure 1 of the drawings is a perspective view of the front portion of awagon-gear with our improved brake attached. Fig. 2 is an under planView of the same, and Fig. 3 a detail view in perspective of aportionot' the brake mechanism and wagon-tongue.

The present invention has relation to certain new and usefulimprovements in automatic wagon-brakes, and refers more particularly tothat class in which the brake-shoes are connected to the ends of ahorizontal crosspiece or bar,which has secured to it, near each end,rods extending forward and over' the axle, the ends being pivoted tolinks or short rods at right angles therewith, which in turn' arepivoted to the inner end of the wagontongue, so that the sliding motionofthe tongue will operate the brakes, the tongue having an elongatedslot to admit of said motion.

The object of theinvention is to improve the construction of theabove-mentioned class of wagon-brakes, whereby simple, practical, andeffective means are provided for making the connection between thehereinbefore-mentioned links or short rods and the rear endof thewagon-tongue, thus rendering the brakes more certain in their action andat the same time making provision for the free vertical movement of thetongue. These objects we attain by the construction substantially asshown in the drawings, and hereinafter described and claimed.

thereof the usual axle, D, upon which aremounted the wheels E in theordinary manner. The points of juncture between the cross-brace (Nomodel.)

C and hounds A are strengthened and menforced by the metal yokes F, theends thereof being fastened upon the upper and under sides of both thebrace and hounds, thus forming a strong and durable connection betweenthem. The yokes F extend out some distance beyond the brace C to formguides for the brake-beam G, through which it passes, said beam havingthe usual brakeshoes, a, connected thereto.

To the beam G are secured one end of rods 1), the forward or oppositeends extending over the axle D, and have pivotally connected to them theouter ends of arms 0. These arms 0, near their outer ends, are pivotedto the under side of the hounds A, and at their inner extremities arepivoted to a strap, H, said strap being curved, as shown in Fig. 3, togive it additional strength. The curved strap H, at its outer end, isformed with an eye, 01, to connect it to the hooked end of a plate, I,said plate being adjustably connected to the under side of the wagontongue K, held between the hounds bya bolt, 0, passing through thehounds and through an elongated slot, h,in thetongue. The elongated sloth admits of the tongue K having the necessary degree of horizontalmotion to bring the brake-shoes in the usual manner against the rim ofthe wheels.

If desired, a pin, 1', may be employed, and when inserted in the holegin front of the bolt 0 the tongue K will be prevented from moving, andthus the brakes from acting.

The important feature of our invention is the manner of connecting thearms 0 to the tongue K by the intermediate eye-strap, H, and the hookedplate I.

It will be seen that a hinged or swiveled' connection is obtained by theeye (I and hook upon the end of the plate I, the two being fastenedtogether, as shown, thus allowing the tongue to have a vertical motionupon the arc of a circle, and thereby giving greater ease to the horsesthan where the arms are pivoted directly to the tongue. When it isdesired to give the arms 0 a greater or less play the plate I can be adjnsted upon the tongue, and set nearer to or farther away from the innerend thereof, the elongated slot It being of sufficient length to admitof this adjustment or variation in the horizontal movement of thetongue.

The yokes F not only provide means for strengthening the jointor pointof connection between the hounds and cross-brace, but form guides forthe brake-beam G, and also hold and support it, and thus prevent anyundue strain on the rods 11 or other portions of the brake.

Having now fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is-

In an automatic wagon-brake, the combination, with the transverse arms0, pivoted to the hounds A, and suitably connected to the brakeshoes byrods 1), of the means, substantially as shown, of connecting the pivotedarms to the sliding and pivoted tongue K, which consist of theintermediate strap, H, to which the arms are pivoted, and the plate I,said strap and plate having, respectively, an eye and hook for making ahinged connection at the point

